sqlmapproject/sqlmap · error · H2Error

aggregate response headers exceed configured limit

Error message

aggregate response headers exceed configured limit

What it means

Error "aggregate response headers exceed configured limit" thrown in sqlmapproject/sqlmap.

Source

Thrown at lib/request/http2.py:1132

            if status == 204 and content_length is not None:
                self._connection_error("204 response must not carry content-length")
            if status == 205 and content_length not in (None, 0):
                self._connection_error("205 response content-length must be zero")
            if state.request_method == b"CONNECT" and 200 <= status < 300 and content_length is not None:
                self._connection_error("successful CONNECT response must not carry content-length")
            if (not state.body_forbidden and content_length is not None and
                    content_length > MAX_RESPONSE_SIZE):
                self.usable = False
                raise H2Error("declared response body exceeds configured limit")
            if end_stream:
                self._finish_response(state)
        else:
            _validate_response_field_section(headers, trailers=True)
            if not end_stream:
                self._connection_error("trailing field section did not end the stream")
            if _field_section_size(state.headers) + _field_section_size(headers) > MAX_HEADER_LIST_SIZE:
                self.usable = False
                raise H2Error("aggregate response headers exceed configured limit")
            state.trailers.extend(headers)
            state.headers.extend(headers)
            self._finish_response(state)

    def _process_header_frame(self, ftype, flags, sid, payload, states, continuation_sid):
        if continuation_sid is not None:
            if ftype != CONTINUATION or sid != continuation_sid:
                self._connection_error("frame interleaved inside a CONTINUATION sequence")
        elif ftype == CONTINUATION:
            self._connection_error("unexpected CONTINUATION frame")

        state = states.get(sid)
        if state is None:
            self._connection_error("header frame for an unknown stream")
        if state.complete:
            self._connection_error("header frame received after END_STREAM")

        if ftype == HEADERS:

View on GitHub (pinned to 0a35b20e39)

When it happens

Trigger: Thrown at lib/request/http2.py:1132 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of sqlmapproject/sqlmap@0a35b20e39 (2026-08-26). Data as JSON: /api/errors/e1253379a3da45a9. Report an issue: GitHub.